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Unread 12-05-2008, 12:33
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Re: pic: Beam Bending Example

Quote:
Originally Posted by Hachiban VIII View Post
So basically what I am seeing here is that most of the stress results along the sides, which are forced to stretch when a force is applied. Right? So there really isn't that much stress on the top? How would it look if there were a bunch of holes everywhere (on the top and sides)?
Correct. But the stress on the sides is in compression or tension which is usually far stronger than in sheer which is what the top (and bottom) are in.

Holes would create 'stress concentrators' where the lines of flux (stress) would be concentrated between the edges of the holes and the sidewall. The stress loads here would be the same as in the full part but that section would only have the strength of the, now smaller, width.
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